论文部分内容阅读
豆油、花生油、菜籽油、蓖麻油等植物油,看起来与机油相似,但在润滑性能及其它性能上满足不了柴油机的工作需要。润滑油不只是起润滑减磨作用,还有清洗机件上的磨屑和污垢、传导热量和冷却机件、密封配合间隙等作用。要求机油在高温时不发生氧化变质,保持适宜的粘度。柴油机油是从矿物原油中提炼出来的,自然温度300～380℃,闪点200℃左右,在低温时不发生氧化,加热到250℃时氧化也极其缓
Soybean oil, peanut oil, rapeseed oil, castor oil and other vegetable oils, looks similar to the oil, but lubrication performance and other properties can not meet the work needs of the diesel engine. Lubricating oil not only functions as lubrication and antirust, but also wear debris and dirt on the cleaning parts, conduct heat and cooling parts, seal with the gap and so on. Requires oil at high temperature does not occur oxidative deterioration, to maintain the appropriate viscosity. Diesel oil is extracted from mineral crude oil, the natural temperature of 300 ~ 380 ℃, a flash point of about 200 ℃, the oxidation does not occur at low temperatures, when heated to 250 ℃ oxidation is also extremely slow